TY  - RPRT
TI  - Environmental geohydrology, folio No.1 (White Marsh 7 1/2-minute quadrangle)
AU  - E. G. Otton
PY  - 1974
DO  - 10.3133/ofr74347
UR  - https://pubs.usgs.gov/publication/ofr74347
ID  - ofr74347
ER  -